Mechanism for moving doors.



J. TACOMA & C. DE VLEESCHOUWER. MECHANISM FOR MOVING DOORS.

Iatvntod Nov. 26, 1918.

3 SHEETS-SHEET I.

J. TACOMA & C. DE VLEESCHOUWER.

MECHANISM FOR MOVING sodas.

APPLICATION FILED MAY 3|, l9]?- I 7 V latvntml l\0\'. 20, 1918.

3 SHEETS-SHEET 2- fiayanw lz n'enfcd Nov. 26, 1918.

J. TACOMA & C. DE VLEESCHOUWER.

MECHANISM FOR MOVING DOORS.

APPLICATION FILED MAY 31. 1917.

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J'OHANNES TACOMA AND CAMILLE m: VLEECHOUWER, OF AMSTERDAM, NETHER- LANDS.

e I MECHANISM FOR MOVING DOOR-S.

Specification of Letters Patent. Patented Nov. 26, 1918,

Application filed May 31, 1917. Serial No. 171,944,

To all whom it may concern:

Be it known that we, JorrANNns Tacoma and CAMILLE on Vannsououwnn, subjects of the Queen of the Netherlands, residing the former at Vossiusstraat 48, and the latter residing at Amstelveenscheweg 139, both in Amsterdam, Kingdom of the Netherlands, have invented certain new and useful 1mprovements in Mechanism for Moving Doors, of which the following is a specification.

This invention relates to mechanism for moving doors and the like and more 'espe cially the doors or cases in shop warehouses, workrooms and so forth.

As will hereinafter appear doors constructed with actuating mechanism according to this invention, possess considerable advantages over the sliding doors which are usually employed for the above-mentioncd purposes and also as compared with other kinds of doors.

In its application to a pair of doors the .moving mechanism according to the invention may be designed in such a manner that when one door is open the other door opens simultaneously. When opened the doors take up a position inside the case, adjacent to the side walls thereof so as to leave open the whole width of the case. The movementof the doors is absolutely noiseless and is eifeetcd by a minimum of effort, and more over the doors are steady in any and every position and may be so fitted as to provide a dust-tight closure. A case providedwith doors according to this invention which is accessible over its full width, will obviate the cumbersome and noisy sliding to and fro, necessary when sliding doors are employed as hitherto constructed and which moreover possess the disadvantage that such sliding doors always cover a .part of the opening of the case. Ascompared with those having the usual hinges, doors according to this invention are preferable, because they are, when opened, practically or fully contained in the case, so that they oocupy little or no room outside the case, and as will be hereinafter explained, they will occupy only very little room insi e the latter.

According to the invention, that side of a door which corresponds with the hinged side of a common hinged door is guided along a practically straight line parallel to the side wall of the case, whereas that side The guiding of one side of the door in a practically straight line may be accomplished by a system of rods, bars or the like, comprising a rod or bar one end of which is pivotally connected to that side of the door at which the hinge would be placed, the other end of said rod or bar being pivotally and slidably mounted in a fixed point, and a guide rod or bar or like device for guiding a point of said first mentioned rod or bar so as to describe an arc, the center of which is so determined that the required rectilinear movement is obtained.

' When applying the above-described mechanism to a pair of doors, the rods or bars connected to those sides of the doors at which the hinges would be placed, may be interconnected by means of lateral arms fixed to said bars, the free ends of which are coupled by a link, whereby the movements of'the doors will be symmetrical and uniform. When moving either of the doors toward its closed or its opened position, the other door performs a similar and symmetrical movement.

In order to facilitate the initial opening of the door or doors, the rod or bar guiding its outer side in an arc may extend across its pivot to form a finger, which, in closed position of the doors, engages the rod or bar which guides one side of the door along a straight line, so as to enlarge the angle inclosed between said rod or bar and the door.

Finally a hook may be provided to the upper or lower side of the door or doors, 6. 0., at that side opposite to which it is guided in a straight line, said hook engaging a corresponding notch in the case when the door is in closed position, thus forming a pivot for the initial opening movement.

The invention will now be described with reference to the annexed drawings, which represent by way of example a case having a pair of doors Figure l is a plan view of the moving mechanism, the bottom of the case being removed.

Fig. 2 is a longitudinal cross-section on the line A-B in Fig. 1.

Figs. 8 and 4 are details, indicating the way in which a dust-tight fitting of the right-hand half showing the bottom of the case in which different positions of the right-hand door are indicated, and the left hand portion showing the lower surface 0 the upper wall of the casing.

In Fig. 1 the side walls of the case are indicated by land the back wall thereof by 2. The doors 3, 3 are in the closed position. Beneath thebottom'or floor of the case two pairs of transverse'bars 4, 4i and 6, 6- respectively are provided. In the middle of each of the transverse rods 4, which are located a short distance from the side walls 1, 1, a pivot 7 is provided which is engaged by the forked end 8 of a rod or bar 9, in such a manner that the rod or bar 9 may turn about and may slide lengthwise for a certain distance on said pivot, At its other, end each of the rods or bars 9 has a vertically disposed bolt 10 attached toit, which bolts 10, 10 support the sides of the doors 3, 3 where they are usually hinged. i

Radius rods 12, 12 are carried on'pivots 11, which are mounted in a straight line. with the pivots 7, 7 on lugs 5, 5 on the side walls of the case, the free ends of said radius rodsbeing connected to the rods or bars 9, 9 in such a manner that the rod 9 connected to the right hand-door is coupled to the radius rod 12, having its pivot at the right-hand side of the case and vice versa. The length of the rods 12, the position of their pivots 11 and of the connections 13 enable the bolts 10 to move along practically straight lines a, a when the pivots 13 describe arcs about the pivots 11.

Near the ends of the radius rods 12, 12 which are connected to the rods 9, 9, rollers 14 are provided which move on supporting bars 6, 6.

At those sides of the doors which join when the case is closed, there are provided flat bars 15, 15 at both the upper and lower edges of-the-doors, and having their pivots at 16, 16, mounted on the casing. These flat bars 15, 15 extend across said pivots and form fingers 17, 17 which in the closed position of the doors 3, 3 engage the rods of both doors is effected by interlinking the lateral arms 18, 18 which extend in opposite directions, relatively of the rods 9, 9 at the center of the width of the case, by means of a coupling link I 19. These coupling nieans force the mechanism of both of the,

doors to move-symmetrically and uniformly.

The curve 20, tangent to the successive positions of the doors when opened, is indicated in Fig. 5 for the right-hand door. In the bottom of the case illustrated there is formed a recessed portion Or grooving limited by said curve 20. It should be noted that the door moves without any friction along the edge of said recessed portion,"as

The coupling of the moving mechanisms it is supported on the bolt 10 and its movement is determined by the rod or bar 15.

On the lower side of the top wall there are likewise providedrecessed portions of the same shape as those at the bottom. In Fig. 5 the left-hand recessed portion of the top wall is indicated at 21. vThe same figure tween the latter and the rods 9,9. In consequence of the acuteness of the angles inclosed by these parts in the closed position, the component for enlarging these angles when pulling the handles 24:, 2 1 would be so small if these fingers 17, 17 were omitted,

that the powerful efl'ort necessary for open mg might damage the doors and-be still unsuccessful.

doors by enlarging the angle inclosed be- 2 v In Fig. 1 the position of the system of rods or bars, when the doors take up their opened position adjacent to the side walls 1, 1 (side Fig. 5), is indicated by chain dotted lines. I

Figs. 3 and 4 hardly require further explanation. Fig. 3 indicates the way of securing a dust-tight fitting between the bottom (215 of the case and the lower rim 26 of the core.

In like manner a dust-tight fitting between the top 27 and the doors may be secured. According to Fig. 4: the parts 28,

28 of the doors may engageeach other by so forming the meeting edges that they interfit, the surfaces fort-his purpose being respectively concave and convex. A similar fitting i provided at the corner posts 29-. Though the illustrated application of the mechanism refers to a pair of doors, which appears to include the most advantages, the

invention is, however, applicable also to.

single doors, which will be clear without further description.

The invention is not restricted to the doors of cases but may be applied in general to all purposes where the usual hinged door would occupy too 'much room or would be cumbersome in an other respect.

Having now escribed our invention, what We claim as new and desire to secure by Letters Patent is 1. Door moving mechanism comprising in combination a case having top and bottom and side walls, a door to the case a rod having one end pivotally connected to the side of the door-which is usually hinged and having its other end p'ivotally and'slidably mounted'relatively to a fixed point of the case and a radius rod for guiding a point on the first mentioned rod along an arc, the

center of which radius rod is determined so .rods each having one end pivotally connected to the side of the door which is usually hinged, and each having their other ends pivotally and slidably mounted relatively to fixed points on the case, a pair of radius rods for guidin a point on each of the first mentioned r0 s along an arc, the centers of which radius rods are so de-.

termined as to produce rectilinear movementsof the sides of the doors which are usually hinged, and means whereby the parts are interlinked to produce symmetrical and uniform movements of the doors.

3. Door moving mechanism comprising in combination, a case having top and bottom and side walls, doors to the case, a pair of rods each havin one end pivotally connected to the side 0 the door which is usually hinged, and each having their other ends pivotally and slidably mounted relatively to fixed points on' the case, a pair of radius rods for guiding a point on each of the first mentioned rods along an arc, the centers of which radius rods are so determined as to produce rectilinear movements of the sides of the doors which are usually hinged, lateral arms extending in opposite directions from each of the first mentioned pair of rods and a link connecting the free'ends of said lateral arms together, in order to produce symmetrical and uniform movements of the doors.

4. Door movingmechanism comprisingin combination a case having top and bottom and side walls, a door to the case, a rod having one end pivotally connected to the side of the door which is usually hinged, and having its other end pivotally and slidv ably mounted relativelyto a fixed point of the case, a radius rod and means attached to the handle side of the door to guide it along an approximately circular path.

5. Door moving mechanism comprising in combination a case having top and bottom and side walls, a door to the case, a rod having one end pivotally connected to the side of the door which is usually hinged and formingan angle therewith, and having its otherv end pivotally and slidably mounted relatively to a fixed point of the case aradius rod and a lever arm fulcrumed on the case and having one arm attached to the handle side of the door and its other arm forming a finger engaging with the first mentioned rod, for effecting a rectilinear movement of that side of the doorwhich is usually hinged in such a manner that when the door is opened, the finger enlarges the angle between the rod and the door.

6. Door moving mechanism comprising in combination, a case having top and bottom and side walls, a door to the case, a rod having one end pivotally connected to the side of the door which; is usually hinged and having its other end pivotally and slidably mounted relatively to a fixed point of the case, a radius rod for guiding a point on the first mentioned rod along an arc, the center of whichradius rod is so determined as to obtain a rectilinear movement of that side of the door which is usually hinged, a hook member on the upper or lower side of the door, and a notch member on the case to engage the hook member whereby a fixed turning pivot point is provided during the initial opening movement of the door.

In testimony whereof we have hereunto set our hand in presence of two subscribing witnesses.

J OHANNES TACOMA. CAMILLE on VLEESCHOUWER.

\Vitnesses D. KLEYN, M. ALVARADO. 

